поставьте следующие предложения в отрицательную и вопросительную формы
1. There's a blackboard in our classroom.
2. There are some English books on the table.
3. There were very many mistakes in your dictation.
4. There's a news grammar rule in Lesson Four.
5. There was a telegram on the table.
6. There was too little ink in my pen to write two letters.